07.24.00
11 a.m. CDT, Monday, July 24, 2000
Mission Control Center, Houston, Texas
STATUS REPORT: ISS00-33
INTERNATIONAL SPACE STATION STATUS REPORT #00-33
The International Space Station’s newest module, Zvezda, has
completed all of its planned maneuvers and now awaits the arrival of
its permanent home in space as the Zarya control module takes over
the remaining rendezvous tasks. The updated docking time is 8:44 p.m.
Eastern Tuesday.
With one day remaining in its solo flight, Zvezda now becomes the
passive vehicle and the ISS will perform a series of orbital burns to
eventually move within range of Zvezda as the two spacecraft move
within range of Russian ground tracking stations.
In preparation for docking, Russian flight controllers sent commands
to Zarya’s computer to extend its docking probe in anticipation
of the docking. Telemetry verified it to be in the proper position
and ready for the capture of Zvezda.
Zvezda’s final three rendezvous and correction burns took place
Friday and Saturday night, placing the module in a 224 by 180 mile
orbit (361 by 290 km). Rendezvous burn 3 occurred at 9:44 p.m. Friday
(43 seconds). Rendezvous burn 4 took place at 10:20 p.m. (8 seconds).
Combined, the two burns raised the overall orbit of Zvezda by 25
miles. The last jet firing, a 9-second correction burn, raised the
perigee, placing the module in the desired orbit for tomorrow
night’s docking.
Upon full team agreement, the go will be given to proceed and the
automatic docking sequence will continue after a station-keeping
period at 30 meters. If all goes well, the two will dock permanently
while flying high above Russia.
Tuesday night’s sequence of events includes:
Activation of Zarya’s Motion Control System
Maneuver of Zvezda to the docking position
Activation of Zvezda’s rendezvous system
Securing the solar arrays
Activation of ISS (Zarya’s) automatic docking system (Kurs)
Docking - Verification that hooks and latches are closed
Immediately after docking, the solar arrays will begin tracking the
sun again and Zarya’s Motion Control System will be
deactivated. Within a few days after docking, the critical transfer
of attitude control of the ISS will be switched from Zarya’s
computers to those on Zvezda.
NASA Television coverage of the docking begins at 8 p.m. EDT Tuesday
and can also be viewed on the agency’s Human Spaceflight
Website at: http://spaceflight.nasa.gov
As of Noon EDT Monday, Zvezda had completed 200 orbits of the Earth
since its launch from the Baikonur Cosmodrome July 12. The next
Mission Control Center status report will be issued after docking
Tuesday night. For more information, call the Johnson Space Center
Newsroom at 281/483-5111.
-end-